/* ============================================
   APP开发服务页样式 - 蓝色主题
   ============================================ */

/* ========== 变量定义 ========== */
:root {
    --app-primary: #3B82F6;
    --app-primary-dark: #2563EB;
    --app-primary-light: #E0F2FE;
    --app-secondary: #06B6D4;
    --app-text-dark: #1a1a2e;
    --app-text-gray: #6b7280;
    --app-bg-light: #f8f9fc;
    --app-border: #eef0f6;
}

/* ========== Hero区域 ========== */
.app-hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 50%, #2563EB 100%);
}

.app-hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.app-hero-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255,255,255,0.08) 0%, transparent 50%);
}

.app-hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.1) 100%);
}

.app-hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 100px 0 80px;
}

.app-hero-left {
    color: #fff;
}

.app-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 24px;
}

.app-breadcrumb a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    transition: color 0.3s;
}

.app-breadcrumb a:hover {
    color: #fff;
}

.app-breadcrumb span {
    color: rgba(255,255,255,0.4);
}

.app-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.app-hero-title {
    font-size: 52px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.app-title-accent {
    background: linear-gradient(135deg, #fff 0%, #E0F2FE 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.app-hero-desc {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255,255,255,0.9);
    margin-bottom: 36px;
}

.app-hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.app-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.app-btn-primary {
    background: #fff;
    color: var(--app-primary);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.app-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.app-btn-outline {
    background: rgba(255,255,255,0.1);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.3);
    backdrop-filter: blur(10px);
}

.app-btn-outline:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.5);
}

.app-btn-white {
    background: #fff;
    color: var(--app-primary);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.app-btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.app-btn-ghost {
    background: rgba(255,255,255,0.1);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.3);
}

.app-btn-ghost:hover {
    background: rgba(255,255,255,0.2);
}

/* 设备展示 */
.app-hero-right {
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-devices {
    display: flex;
    gap: 20px;
    perspective: 1000px;
}

.app-device {
    position: relative;
}

.app-device-frame {
    position: relative;
    width: 200px;
    height: 400px;
    background: #1a1a2e;
    border-radius: 28px;
    padding: 10px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.3), 0 0 0 2px rgba(255,255,255,0.1);
    transition: transform 0.5s;
}

.app-device-ios {
    transform: rotateY(-5deg) rotateX(2deg);
}

.app-device-android {
    transform: rotateY(5deg) rotateX(2deg) translateY(20px);
}

.app-device:hover .app-device-frame {
    transform: rotateY(0) rotateX(0);
}

.app-device-notch {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 20px;
    background: #1a1a2e;
    border-radius: 0 0 12px 12px;
    z-index: 10;
}

.app-device-screen {
    width: 100%;
    height: 100%;
    background: #fff;
    border-radius: 22px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.app-screen-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 16px 8px;
    background: var(--app-primary);
    color: #fff;
}

.app-screen-time {
    font-size: 12px;
    font-weight: 600;
}

.app-screen-status {
    display: flex;
    gap: 3px;
}

.app-screen-status span {
    width: 3px;
    height: 3px;
    background: #fff;
    border-radius: 50%;
}

.app-screen-content {
    flex: 1;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: #f8f9fc;
}

.app-screen-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
}

.app-nav-dot {
    width: 8px;
    height: 8px;
    background: var(--app-primary);
    border-radius: 50%;
}

.app-nav-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--app-text-dark);
}

.app-screen-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: #fff;
    border-radius: 10px;
}

.app-card-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    flex-shrink: 0;
}

.app-card-text {
    flex: 1;
}

.app-card-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--app-text-dark);
    margin-bottom: 2px;
}

.app-card-desc {
    font-size: 10px;
    color: var(--app-text-gray);
}

.app-screen-stats {
    display: flex;
    gap: 8px;
}

.app-stat {
    flex: 1;
    padding: 10px;
    background: #fff;
    border-radius: 8px;
    text-align: center;
}

.app-stat-num {
    display: block;
    font-size: 16px;
    font-weight: 800;
    color: var(--app-primary);
    margin-bottom: 2px;
}

.app-stat-label {
    font-size: 10px;
    color: var(--app-text-gray);
}

.app-screen-chart {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 60px;
    padding: 8px;
    background: #fff;
    border-radius: 8px;
}

.app-chart-bar {
    flex: 1;
    background: linear-gradient(180deg, var(--app-primary) 0%, var(--app-primary-dark) 100%);
    border-radius: 4px 4px 0 0;
    min-height: 10px;
}

.app-screen-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.app-list-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: #fff;
    border-radius: 8px;
}

.app-list-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
}

.app-list-info {
    flex: 1;
}

.app-list-name {
    font-size: 11px;
    font-weight: 600;
    color: var(--app-text-dark);
    margin-bottom: 2px;
}

.app-list-msg {
    font-size: 10px;
    color: var(--app-text-gray);
}

.app-list-time {
    font-size: 9px;
    color: var(--app-text-gray);
}

/* ========== 数据指标 ========== */
.app-metrics {
    background: #fff;
    padding: 60px 0;
    border-bottom: 1px solid var(--app-border);
}

.app-metrics-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}

.app-metric {
    text-align: center;
    flex: 1;
}

.app-metric-num {
    font-size: 48px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--app-primary) 0%, var(--app-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    display: inline;
}

.app-metric-suffix {
    font-size: 24px;
    font-weight: 700;
    color: var(--app-primary);
    display: inline;
}

.app-metric-label {
    font-size: 14px;
    color: var(--app-text-gray);
    margin-top: 8px;
}

.app-metric-divider {
    width: 1px;
    height: 50px;
    background: var(--app-border);
    margin: 0 20px;
}

/* ========== 通用Section头部 ========== */
.app-section-head {
    text-align: center;
    margin-bottom: 50px;
}

.app-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--app-primary);
    margin-bottom: 14px;
    padding: 4px 16px;
    border: 1px solid rgba(59,130,246,0.2);
    border-radius: 20px;
    background: rgba(59,130,246,0.06);
}

.app-heading {
    font-size: 36px;
    font-weight: 900;
    color: var(--app-text-dark);
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}

.app-heading span {
    background: linear-gradient(135deg, var(--app-primary) 0%, var(--app-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.app-subheading {
    font-size: 15px;
    color: var(--app-text-gray);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ========== 开发方案 ========== */
.app-solutions {
    padding: 90px 0;
    background: var(--app-bg-light);
}

.app-solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.app-solution-card {
    background: #fff;
    border-radius: 16px;
    padding: 32px;
    border: 1px solid var(--app-border);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.app-solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: 16px 16px 0 0;
    opacity: 0;
    transition: opacity 0.3s;
    background: linear-gradient(90deg, var(--app-primary), var(--app-primary-dark));
}

.app-solution-card:hover::before {
    opacity: 1;
}

.app-solution-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.06);
}

.app-solution--featured {
    border-color: rgba(59,130,246,0.25);
    background: linear-gradient(135deg, rgba(59,130,246,0.02), rgba(37,99,235,0.02));
}

.app-solution--featured:hover {
    border-color: rgba(59,130,246,0.4);
    box-shadow: 0 12px 32px rgba(59,130,246,0.1);
}

.app-solution-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 20px;
    background: rgba(59,130,246,0.08);
    color: var(--app-primary);
}

.app-badge--hot {
    background: linear-gradient(135deg, var(--app-primary), var(--app-primary-dark));
    color: #fff;
}

.app-solution-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--app-primary), var(--app-primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: transform 0.4s;
}

.app-solution-icon svg {
    width: 32px;
    height: 32px;
}

.app-solution-card:hover .app-solution-icon {
    transform: scale(1.08) rotate(-3deg);
}

.app-solution-card h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--app-text-dark);
    margin-bottom: 10px;
}

.app-solution-desc {
    font-size: 14px;
    color: var(--app-text-gray);
    line-height: 1.7;
    margin-bottom: 22px;
}

.app-solution-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.app-solution-feature {
    display: flex;
    gap: 12px;
    align-items: baseline;
    font-size: 13px;
}

.app-feature-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--app-primary);
    min-width: 64px;
    flex-shrink: 0;
}

.app-solution-feature span:last-child {
    color: #4b5563;
    line-height: 1.5;
}

.app-solution-price {
    padding-top: 16px;
    border-top: 1px solid var(--app-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.app-price-label {
    font-size: 12px;
    color: var(--app-text-gray);
}

.app-price-value {
    font-size: 18px;
    font-weight: 800;
    color: var(--app-primary);
}

/* ========== APP类型 ========== */
.app-types {
    padding: 90px 0;
    background: #fff;
}

.app-types-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.app-type-card {
    background: var(--app-bg-light);
    border-radius: 16px;
    padding: 28px;
    border: 1px solid var(--app-border);
    transition: all 0.3s;
}

.app-type-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.06);
    border-color: rgba(59,130,246,0.2);
}

.app-type-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    transition: transform 0.4s;
}

.app-type-icon svg {
    width: 28px;
    height: 28px;
}

.app-type-card:hover .app-type-icon {
    transform: scale(1.08) rotate(-3deg);
}

.app-type--blue {
    background: linear-gradient(135deg, #3B82F6, #2563EB);
    color: #fff;
}

.app-type--green {
    background: linear-gradient(135deg, #10B981, #059669);
    color: #fff;
}

.app-type--purple {
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    color: #fff;
}

.app-type--red {
    background: linear-gradient(135deg, #EF4444, #DC2626);
    color: #fff;
}

.app-type--orange {
    background: linear-gradient(135deg, #F59E0B, #D97706);
    color: #fff;
}

.app-type--cyan {
    background: linear-gradient(135deg, #06B6D4, #0891B2);
    color: #fff;
}

.app-type-card h3 {
    font-size: 18px;
    font-weight: 800;
    color: var(--app-text-dark);
    margin-bottom: 10px;
}

.app-type-card p {
    font-size: 14px;
    color: var(--app-text-gray);
    line-height: 1.7;
    margin-bottom: 16px;
}

.app-type-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.app-type-tags span {
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 16px;
    background: rgba(59,130,246,0.06);
    color: var(--app-primary);
    font-weight: 500;
}

/* ========== 功能模块Bento ========== */
.app-features {
    padding: 90px 0;
    background: var(--app-bg-light);
}

.app-features-bento {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto;
    gap: 20px;
}

.app-feature-card {
    background: #fff;
    border-radius: 16px;
    padding: 28px;
    border: 1px solid var(--app-border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.app-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: 16px 16px 0 0;
    opacity: 0;
    transition: opacity 0.3s;
}

.app-feature-card:hover::before {
    opacity: 1;
}

.app-feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.06);
}

.app-feature-lg {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(59,130,246,0.04) 0%, rgba(37,99,235,0.04) 100%);
    border-color: rgba(59,130,246,0.12);
}

.app-feature--blue::before {
    background: linear-gradient(90deg, #3B82F6, #2563EB);
}

.app-feature--green::before {
    background: linear-gradient(90deg, #10B981, #059669);
}

.app-feature--orange::before {
    background: linear-gradient(90deg, #F59E0B, #D97706);
}

.app-feature--purple::before {
    background: linear-gradient(90deg, #8B5CF6, #7C3AED);
}

.app-feature--red::before {
    background: linear-gradient(90deg, #EF4444, #DC2626);
}

.app-feature--cyan::before {
    background: linear-gradient(90deg, #06B6D4, #0891B2);
}

.app-feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    transition: transform 0.4s;
}

.app-feature-icon svg {
    width: 28px;
    height: 28px;
}

.app-feature-card:hover .app-feature-icon {
    transform: scale(1.08) rotate(-3deg);
}

.app-feature--blue .app-feature-icon {
    background: linear-gradient(135deg, #3B82F6, #2563EB);
    color: #fff;
}

.app-feature--green .app-feature-icon {
    background: linear-gradient(135deg, #10B981, #059669);
    color: #fff;
}

.app-feature--orange .app-feature-icon {
    background: linear-gradient(135deg, #F59E0B, #D97706);
    color: #fff;
}

.app-feature--purple .app-feature-icon {
    background: linear-gradient(135deg, #8B5CF6, #7C3AED);
    color: #fff;
}

.app-feature--red .app-feature-icon {
    background: linear-gradient(135deg, #EF4444, #DC2626);
    color: #fff;
}

.app-feature--cyan .app-feature-icon {
    background: linear-gradient(135deg, #06B6D4, #0891B2);
    color: #fff;
}

.app-feature-card h3 {
    font-size: 18px;
    font-weight: 800;
    color: var(--app-text-dark);
    margin-bottom: 10px;
}

.app-feature-card > p {
    font-size: 14px;
    color: var(--app-text-gray);
    line-height: 1.7;
    margin-bottom: 16px;
}

.app-feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.app-feature-tags span {
    font-size: 12px;
    padding: 4px 14px;
    border-radius: 20px;
    background: rgba(59,130,246,0.06);
    color: var(--app-primary);
    font-weight: 500;
}

.app-feature-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.app-feature-card ul li {
    font-size: 13px;
    color: var(--app-text-gray);
    padding: 4px 0;
    padding-left: 18px;
    position: relative;
}

.app-feature-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--app-primary);
}

/* ========== 技术栈 ========== */
.app-tech {
    padding: 90px 0;
    background: #fff;
}

.app-tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.app-tech-card {
    background: var(--app-bg-light);
    border-radius: 16px;
    padding: 28px;
    border: 1px solid var(--app-border);
    transition: all 0.3s;
}

.app-tech-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.06);
    border-color: rgba(59,130,246,0.2);
}

.app-tech-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--app-text-dark);
    margin-bottom: 16px;
}

.app-tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}

.app-tech-item {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    transition: transform 0.3s;
}

.app-tech-item:hover {
    transform: translateY(-2px);
}

.app-tech--blue {
    background: rgba(59,130,246,0.1);
    color: #3B82F6;
}

.app-tech--green {
    background: rgba(16,185,129,0.1);
    color: #10B981;
}

.app-tech--cyan {
    background: rgba(6,182,212,0.1);
    color: #06B6D4;
}

.app-tech--purple {
    background: rgba(139,92,246,0.1);
    color: #8B5CF6;
}

.app-tech-card p {
    font-size: 13px;
    color: var(--app-text-gray);
    line-height: 1.6;
}

/* ========== 开发流程 ========== */
.app-process {
    padding: 90px 0;
    background: var(--app-bg-light);
}

.app-process-timeline {
    position: relative;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.app-process-line {
    position: absolute;
    top: 36px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--app-primary) 0%, var(--app-primary-dark) 100%);
    z-index: 0;
}

.app-process-step {
    position: relative;
    z-index: 1;
    text-align: center;
}

.app-process-dot {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid var(--app-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    position: relative;
    z-index: 2;
}

.app-process-dot span {
    font-size: 12px;
    font-weight: 800;
    color: var(--app-primary);
}

.app-process-card {
    background: #fff;
    border-radius: 12px;
    padding: 20px 14px;
    border: 1px solid var(--app-border);
    transition: all 0.3s;
}

.app-process-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
    border-color: rgba(59,130,246,0.2);
}

.app-process-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--app-primary), var(--app-primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    transition: transform 0.4s;
}

.app-process-icon svg {
    width: 20px;
    height: 20px;
}

.app-process-card:hover .app-process-icon {
    transform: scale(1.08) rotate(-3deg);
}

.app-process-card h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--app-text-dark);
    margin-bottom: 6px;
}

.app-process-card p {
    font-size: 12px;
    color: var(--app-text-gray);
    line-height: 1.5;
}

/* ========== 案例展示 ========== */
.app-cases {
    padding: 90px 0;
    background: #fff;
}

.app-cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.app-case-card {
    background: #fff;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--app-border);
    transition: all 0.3s;
}

.app-case-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.06);
}

.app-case-img {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: #f1f5f9;
}

.app-case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.app-case-card:hover .app-case-img img {
    transform: scale(1.05);
}

.app-case-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    font-size: 11px;
    font-weight: 600;
    color: #fff;
    background: rgba(59,130,246,0.85);
    padding: 3px 12px;
    border-radius: 12px;
}

.app-case-body {
    padding: 18px;
}

.app-case-body h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--app-text-dark);
    margin-bottom: 6px;
}

.app-case-body p {
    font-size: 13px;
    color: var(--app-text-gray);
    line-height: 1.6;
    margin-bottom: 12px;
}

.app-case-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.app-case-tags span {
    font-size: 11px;
    color: var(--app-primary);
    background: rgba(59,130,246,0.06);
    padding: 3px 10px;
    border-radius: 10px;
}

.app-more-wrap {
    text-align: center;
    margin-top: 40px;
}

.app-more-btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 32px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    color: var(--app-primary);
    background: rgba(59,130,246,0.06);
    text-decoration: none;
    transition: all 0.3s;
}

.app-more-btn:hover {
    background: rgba(59,130,246,0.12);
    transform: translateY(-2px);
}

/* ========== 为什么选择 ========== */
.app-why {
    padding: 90px 0;
    background: var(--app-bg-light);
}

.app-why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.app-why-card {
    background: #fff;
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    border: 1px solid var(--app-border);
    transition: all 0.3s;
    position: relative;
}

.app-why-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.06);
    border-color: rgba(59,130,246,0.2);
}

.app-why-num {
    font-size: 11px;
    font-weight: 800;
    color: var(--app-primary);
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.app-why-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--app-primary), var(--app-primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    transition: transform 0.4s;
}

.app-why-icon svg {
    width: 28px;
    height: 28px;
}

.app-why-card:hover .app-why-icon {
    transform: scale(1.08) rotate(-3deg);
}

.app-why-card h3 {
    font-size: 17px;
    font-weight: 800;
    color: var(--app-text-dark);
    margin-bottom: 10px;
}

.app-why-card p {
    font-size: 13px;
    color: var(--app-text-gray);
    line-height: 1.7;
}

/* ========== CTA ========== */
.app-cta {
    position: relative;
    padding: 90px 0;
    background: linear-gradient(135deg, var(--app-primary) 0%, var(--app-primary-dark) 100%);
    color: #fff;
    text-align: center;
    overflow: hidden;
}

.app-cta-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255,255,255,0.05) 0%, transparent 50%);
}

.app-cta-inner {
    position: relative;
    z-index: 1;
}

.app-cta-inner h2 {
    font-size: 38px;
    font-weight: 900;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.app-cta-inner p {
    font-size: 17px;
    opacity: 0.9;
    margin-bottom: 36px;
}

.app-cta-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .app-hero-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .app-hero-title {
        font-size: 40px;
    }

    .app-devices {
        justify-content: center;
    }

    .app-solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .app-types-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .app-features-bento {
        grid-template-columns: repeat(2, 1fr);
    }

    .app-feature-lg {
        grid-column: span 2;
    }

    .app-process-timeline {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .app-process-line {
        display: none;
    }

    .app-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .app-why-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .app-price-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .app-duration-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .app-faq-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .app-hero {
        min-height: auto;
    }

    .app-hero-inner {
        padding: 80px 0 60px;
    }

    .app-hero-title {
        font-size: 32px;
    }

    .app-hero-desc {
        font-size: 14px;
    }

    .app-hero-cta {
        flex-direction: column;
    }

    .app-btn {
        justify-content: center;
    }

    .app-devices {
        flex-direction: column;
        align-items: center;
    }

    .app-device-frame {
        width: 180px;
        height: 360px;
    }

    .app-device-android {
        transform: none;
    }

    .app-metrics-grid {
        flex-wrap: wrap;
        gap: 20px;
    }

    .app-metric {
        min-width: 40%;
    }

    .app-metric-divider {
        display: none;
    }

    .app-metric-num {
        font-size: 36px;
    }

    .app-heading {
        font-size: 28px;
    }

    .app-solutions-grid {
        grid-template-columns: 1fr;
    }

    .app-types-grid {
        grid-template-columns: 1fr;
    }

    .app-features-bento {
        grid-template-columns: 1fr;
    }

    .app-feature-lg {
        grid-column: span 1;
    }

    .app-tech-grid {
        grid-template-columns: 1fr;
    }

    .app-process-timeline {
        grid-template-columns: repeat(2, 1fr);
    }

    .app-cases-grid {
        grid-template-columns: 1fr;
    }

    .app-why-grid {
        grid-template-columns: 1fr;
    }

    .app-cta-inner h2 {
        font-size: 28px;
    }

    .app-cta-inner p {
        font-size: 15px;
    }

    .app-cta-btns {
        flex-direction: column;
        align-items: center;
    }

    .app-price-grid {
        grid-template-columns: 1fr;
    }

    .app-duration-grid {
        grid-template-columns: 1fr;
    }

    .app-faq-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== APP开发报价 ========== */
.app-price {
    padding: 90px 0;
    background: var(--app-bg-light);
}

.app-price-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.app-price-card {
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 16px;
    padding: 28px 24px 24px;
    transition: all 0.3s;
    position: relative;
    display: flex;
    flex-direction: column;
}

.app-price-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(59,130,246,0.12);
    border-color: rgba(59,130,246,0.3);
}

.app-price--featured {
    border-color: rgba(245,158,11,0.5);
    box-shadow: 0 12px 32px rgba(245,158,11,0.10);
}

.app-price-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: linear-gradient(135deg, var(--app-primary), var(--app-primary-dark));
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 20px;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(59,130,246,0.3);
}

.app-price--featured .app-price-badge {
    background: linear-gradient(135deg, #F59E0B, #D97706);
    box-shadow: 0 4px 12px rgba(245,158,11,0.3);
}

.app-price-ic {
    font-size: 36px;
    line-height: 1;
    margin-bottom: 12px;
}

.app-price-card h3 {
    font-size: 17px;
    font-weight: 800;
    color: var(--app-text-dark);
    margin-bottom: 10px;
}

.app-price-num {
    display: flex;
    align-items: baseline;
    gap: 2px;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px dashed #E5E7EB;
}

.app-price-currency {
    font-size: 16px;
    font-weight: 700;
    color: var(--app-primary);
}

.app-price-num > span:nth-child(2) {
    font-size: 32px;
    font-weight: 900;
    color: var(--app-primary);
    letter-spacing: -0.02em;
}

.app-price-suffix {
    font-size: 13px;
    font-weight: 600;
    color: #9CA3AF;
    margin-left: 4px;
}

.app-price-list {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
    display: grid;
    gap: 8px;
    flex: 1;
}

.app-price-list li {
    font-size: 13.5px;
    color: #4B5563;
    padding-left: 20px;
    position: relative;
    line-height: 1.6;
}

.app-price-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--app-primary);
    font-weight: 700;
    font-size: 13px;
}

.app-price-btn {
    display: block;
    text-align: center;
    padding: 12px 18px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--app-primary), var(--app-primary-dark));
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s;
    letter-spacing: 0.3px;
}

.app-price-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(59,130,246,0.3);
}

.app-price--featured .app-price-btn {
    background: linear-gradient(135deg, #F59E0B, #D97706);
}

.app-price-note {
    max-width: 900px;
    margin: 32px auto 0;
    text-align: center;
}

.app-price-note p {
    font-size: 13.5px;
    color: #6B7280;
    line-height: 1.8;
}

.app-price-note b {
    color: #374151;
    font-weight: 600;
}

/* ========== APP开发工期 ========== */
.app-duration {
    padding: 90px 0;
    background: linear-gradient(180deg, #F0F7FF 0%, #ffffff 100%);
}

.app-duration-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 48px;
}

.app-duration-card {
    background: #fff;
    border: 1px solid rgba(59,130,246,0.1);
    border-radius: 14px;
    padding: 28px 22px 24px;
    transition: all 0.3s;
    position: relative;
}

.app-duration-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 36px rgba(59,130,246,0.1);
    border-color: rgba(59,130,246,0.25);
}

.app-duration--featured {
    border-color: rgba(245,158,11,0.35);
    background: linear-gradient(180deg, #FFFBF4 0%, #fff 60%);
}

.app-duration-weeks {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin-bottom: 14px;
}

.app-duration-num {
    font-size: 40px;
    font-weight: 800;
    color: var(--app-primary);
    line-height: 1;
    letter-spacing: -1px;
}

.app-duration--featured .app-duration-num {
    color: #F59E0B;
}

.app-duration-unit {
    font-size: 16px;
    font-weight: 600;
    color: #9CA3AF;
}

.app-duration-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 999px;
    background: rgba(59,130,246,0.08);
    color: var(--app-primary);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.app-duration--featured .app-duration-tag {
    background: rgba(245,158,11,0.1);
    color: #F59E0B;
}

.app-duration-card h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--app-text-dark);
    margin: 0 0 14px;
}

.app-duration-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 6px;
}

.app-duration-card ul li {
    font-size: 13px;
    color: #6B7280;
    padding-left: 16px;
    position: relative;
    line-height: 1.5;
}

.app-duration-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--app-primary);
}

.app-duration-note {
    margin-top: 40px;
    padding: 22px 26px;
    background: #EFF6FF;
    border: 1px dashed rgba(59,130,246,0.35);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.app-duration-note p {
    font-size: 14px;
    color: #374151;
    margin: 0;
    line-height: 1.7;
    flex: 1;
    min-width: 280px;
}

.app-duration-note b {
    color: var(--app-primary);
    font-weight: 700;
}

.app-duration-btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--app-primary), var(--app-primary-dark));
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.25s;
    flex-shrink: 0;
}

.app-duration-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59,130,246,0.3);
}

/* ========== APP开发FAQ ========== */
.app-faq {
    padding: 90px 0;
    background: #fff;
}

.app-faq-grid {
    margin-top: 48px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.app-faq-card {
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    padding: 24px 26px;
    background: #fff;
    transition: all 0.3s;
}

.app-faq-card:hover {
    border-color: rgba(59,130,246,0.3);
    box-shadow: 0 8px 26px rgba(0, 0, 0, 0.04);
}

.app-faq-q {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.app-faq-q > span:last-child {
    font-size: 15px;
    font-weight: 700;
    color: var(--app-text-dark);
    line-height: 1.5;
}

.app-faq-ic {
    flex-shrink: 0;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--app-primary), var(--app-primary-dark));
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    letter-spacing: 0.5px;
}

.app-faq-a {
    padding-left: 48px;
}

.app-faq-a p {
    font-size: 14px;
    line-height: 1.75;
    color: #4B5563;
    margin: 0 0 10px;
}

.app-faq-a ul {
    list-style: none;
    padding: 0;
    margin: 0 0 10px;
    display: grid;
    gap: 6px;
}

.app-faq-a ul li {
    font-size: 13.5px;
    color: #4B5563;
    padding-left: 16px;
    position: relative;
    line-height: 1.6;
}

.app-faq-a ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--app-primary);
}

/* ========== 行业资讯主题覆盖 ========== */
.news-section .section-title span {
    background: linear-gradient(135deg, var(--app-primary) 0%, var(--app-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.news-section .btn-outline {
    color: var(--app-primary);
    border-color: var(--app-primary);
}

.news-section .btn-outline:hover {
    background: var(--app-primary);
    color: #fff;
}